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K542 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The REACTOR is a the manufacturer industrial component. Key specifications include height: 0.203 INCHES NOMINAL IN, diameter: 0.616 INCHES MINIMUM AND 0.621 INCHES MAXIMUM IN, material: STEEL COMP 1010 OVERALL, head_style: FLAT CHAMFER, body_length: 0.355 INCHES MAXIMUM IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-276-4460, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
K542
NSN: 5315-00-276-4460
FSC: 5315
CAGE: 30798 — AMCA INTL CORP INSLEY MFG CORP DIV (USA)
SPECIFICATIONS
height0.203 INCHES NOMINAL IN
diameter0.616 INCHES MINIMUM AND 0.621 INCHES MAXIMUM IN
materialSTEEL COMP 1010 OVERALL
head_styleFLAT CHAMFER
body_length0.355 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
chamfer_length0.141 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
inductance_typeSWINGING
mounting_methodTERMINAL SINGLE GROUP
frequency_rating15.75 KILOHERTZ NOMINAL SINGLE COMPONENT
special_featuresWITH COTTER PIN
NSN5315-00-276-4460
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: K542 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DIAMETER: 0.616 INCHES MINIMUM AND 0.621 INCHES MAXIMUM IN
•
CHAMFER LENGTH: 0.141 INCHES NOMINAL IN
•
HEAD STYLE: FLAT CHAMFER
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OVERALL
•
FIRST HOLE DIAMETER: 0.136 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
•
PIN CHAMFER ANGLE: 15.0 DEGREES NOMINAL
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER0.616 INCHES MINIMUM AND 0.621 INCHES MAXIMUM IN
CHAMFER LENGTH0.141 INCHES NOMINAL IN
HEAD STYLEFLAT CHAMFER
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.250 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OVERALL
FIRST HOLE DIAMETER0.136 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
HOLE ARRANGEMENT STYLEONE END DRILLED
SPECIAL FEATURESWITH COTTER PIN
HEIGHT0.203 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
0539-5Interchangeable
interchangeable cross-reference
interchangeable
039549Interchangeable
interchangeable cross-reference
interchangeable
10670724-2Interchangeable
interchangeable cross-reference
interchangeable
30Interchangeable
interchangeable cross-reference
interchangeable
COUPLER,RH ITEMInterchangeable
interchangeable cross-reference
interchangeable
C50Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K542?
K542 is a REACTOR.
What parts can replace K542?
There are 25 known substitutes for K542: 0539-5, 039549, 10670724-2 and 22 more. Substitute compatibility should be verified for your specific system.
Is K542 still available?
K542 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026